Radiator.



corrugation 14. This arrangement forms a sinuous path of travel for the water as it circulates through the unit'. The opposite ends of the walls 15v are straight4 and when brought together will lie against each other and may thus be easily soldered to form a water tight passageway between the opposite walls of the unit.

The assembled water circulating units are positioned in parallel relation to each sions 17 and 18 formed upon the oppositely disposed bends of the strips. As shown 1n Fig. 2 this will space the units apart from each other in a flexible and uniform man! ner.

It is sometimes found that the radiation provided for an engine is not sufficient to accommodate the demands placed upon it and in such a case it is desirable to 1ncrease the circulating capacity of the radiator without enlarging the housing within whichthe units are mounted. This requirement isv met by the iiexibility ofthe con? necting strip 16 which may be bent as shown in Fig. 6 of the drawings to permit the water circulating units to be placed in closer relation to each other than they are normally, as shown in Fig. 2; `in this manner considerable added space is provided and more units may be added as required.

In forming a radiator of the V type it is necessarypto construct the connecting strips 19 in an offset manner thus permitting the water circulating units to be placed parallel to4 each other and each slightly in advance to each other to conform to the V shape-housing.

In the formation of this radiatorl the strips 11 are first run through a die and formed with the corrugations 14 and the.

arcuate intervening walls 15. After the blanks have thus been acted upon they are `folded upon each other to form the units 11 as clearly shown in Fig. 2 of the drawings. This provides a circulating passage 12 for the water as will be readily understood. The separate units are then soldered along their, edges in a water tiofht manner, and are thereafter soldered to the strips 16.

This forms a completed radiator which may whereby said units may be flexibly disposed in adjustable relation to each other.

2. A radiator core for internal combustion engines, comprising,` parallel water circulatingI units, and flexible strips interposed between said units whereby the units may be adjustably disposed in relation to each other.

3. A radiator core for internal combustion engines, comprising, a series of water circulatlng units disposed in parallel relation to each other, and flexible strips disposed at opposite edges of the units and adapted to so space the units that the space between the units may be varied.

4. A radiator core for internal combustion engines, comprising, a series of parallel Water circulating units having oppol 

